Behavioral task
behavioral1
Sample
ByfronExecutor.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
ByfronExecutor.exe
Resource
win10v2004-20240426-en
General
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Target
ByfronExecutor.exe
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Size
3.2MB
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MD5
dbdfb779556b39424d70176ff2bc5c76
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SHA1
ea818c26ffcc9cd2cc1524573b1aadeea9f22edd
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SHA256
6e2a82833646e95bd6d98557c8f9746a8b8ae6a1c7cb1f713b475ee36d6c146b
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SHA512
6064b0566f97d07974d660ebe1b7f6601581882ff73326ee15591c5ae0e0010c8ad7cf897af8945a3889d02148f0b4d4ba02daea2c6322d1b261db93f0370fe4
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SSDEEP
49152:ZvnI22SsaNYfdPBldt698dBcjHfxcEf8gk/Ja5oGd8KTHHB72eh2NT:ZvI22SsaNYfdPBldt6+dBcjHfxkY
Malware Config
Extracted
quasar
1.4.1
Owenn
192.168.0.15:4782
2ce88ce3-f2ee-4e1c-b4b7-66f22a22f4e7
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encryption_key
57E7FE37FD841837FD1B11121840380ED1D1BCFA
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install_name
Fortnite.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Service Host: Engine
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subdirectory
GameFile
Signatures
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Quasar family
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Quasar payload 1 IoCs
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource ByfronExecutor.exe
Files
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ByfronExecutor.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 3.1MB - Virtual size: 3.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 69KB - Virtual size: 68KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ